20 Addison E. Verrill, 



median, dorsal spots dark purplish-brown (lake-red in life) edged 

 with bright orange-yellow. 



About midway between these spots and the lateral margins, on 

 each side, there is an ill denned patch of dark brown (red in life). 

 When the abdomen is straightened these four spots are nearly 

 concealed by the edge of the carapace. The eye-stalks are con- 

 spicuously longitudinally striped with orange and dark purple. 

 The marginal frontal teeth and granules of the carapace and basal 

 antennal segments are light orange. Distal antennal segments are 

 narrowly edged with brown. Under parts in general are orange 

 and orange-yellow ; legs orange and covered with numerous round 

 purple spots, mostly .5 to 1.5 mm. in diameter. 



Most of the legs have a broad, transverse patch of dark purplish- 

 brown on the middle of the propodus. Uropods and telson, on the 

 under side, are thickly spotted with roundish spots of light reddish- 

 brown, mostly about I mm. in diameter. In some female speci- 

 mens there is a large, median, dorsal patch of orange on the first 

 four abdominal segments. 



The following description is from an adult male from Dominica 

 I. (No. 4097, Yale Univ. Mus., coll., A. H. V.)- 



The carapace is oblong, distinctly longer than broad (proportions 

 about 1 .2 : i ) , widest near the middle, convex in both directions ; 

 the borders are only slightly convex ; posterior angles thickened, 

 swollen, and obtusely rounded; cervical suture and notch only 

 slightly developed; posterior transverse groove narrow, well 

 marked. 



Whole dorsal surface of carapace is coarsely and pretty evenly 

 granulated; the granules are rounded and flattened, unequal in 

 size, but not very closely crowded ; the larger ones are often lobed ; 

 all bear, when fresh, a few very short, stiff hairs and similar hairs 

 arise sparingly in the interspaces. The edges are thickened, 

 obtuse, bordered by granules similar to those of the back, becoming 

 larger in front of the cervical notch, where there are about ten, in 

 form of small rounded tubercles. 



The orbits of the eyes are prominent, above and below, and 

 crenulated by coarse granules ; notched on front edge. Eye-stalks 

 short, stout, tapered, conspicuously striped. 



The abdominal somites are stout and convex ; the third to fifth 

 are rather prominent or humped in the middle, but not carinated. 



